Dakota Lithium 12v 20Ah USB Battery

12V 20Ah USB Deep Cycle LiFePO4 Battery

Information
Description
Technical Specs

Engineered in a 12Ah SLA plastic case, but with with 20Ah of Lithium Iron Phosphate (LiFePo4) technology, this battery has three times the power, half the weight, and 5x the lifespan of a 12Ah sealed lead acid battery.

Description

Built for high performance in cold Dakota winters, this 12 volt, 20 amp hour (Ah) lithium battery packs a big punch in a small package. Engineered in a 12Ah SLA case, but with 20Ah of Lithium Iron Phosphate (LiFePO4) technology, this battery has three times the power, half the weight, and lasts 8 times longer than a 12Ah sealed lead acid battery – providing exceptional performance & lifetime value. Optimal performance down to minus 20 degrees Fahrenheit (for winter warriors). 20 Amp hours of capacity provides a full day of power for high amp draw electronics like Garmin fish finders, ice augers, or anything where you need a longer run time. Same performance as our legendary 10 Ah battery, but with 100% more capacity. Drop in replacement for 12Ah SLA batteries (same size, physical dimensions & terminals) but with three times (3X) longer run time. This is version 2.0 of our original 12V 18Ah battery. Same size and price but 2Ah more capacity, lighter weight, and now includes a voltmeter and USBa and USBc charging ports, in addition to standard SLA battery terminals.

Recommended Charger: 12V 3A (sold separately)

Technical Specifications

  • 11 Year Warranty: World beating, best in class, eleven year manufacturer defect warranty.
  • Capacity: 20 Ampere hours. Dakota Lithium batteries provide consistent power for all 20 Amp hours. DL LiFePO4 batteries have a flat voltage curve, which means they have a steady power output as the battery discharges. The power output will not dramatically drop like similar sized SLA batteries, especially in cold temperatures. You get all the juice down to the last drop.
  • Voltage: 12.8V
  • Energy: 256 Watt-hours (Wh)
  • Terminals: F2 Terminals (spade socket). When used in salt water, or corrosive, environments we recommend applying a small amount of dielectric grease on the blades of each terminal. It helps extend the lifespan.
  • USB / Voltmeter: USB A & C ports provide easy charging for personal electronics. Voltmeter included for monitoring battery power levels.
  • Size: 5.9" x 3.94" x 3.86" (151mm x 100mm x 99mm)
  • Weight: 4.25 lbs (1.93Kg) That's 65% lighter then a SLA battery.
  • Lifecycles (battery lifespan): Up to 80% capacity for 5,000 cycles in recommended conditions. The typical SLA has 500 cycles. Dakota Lithium batteries last so long that the price per use is a fraction of traditional batteries.
  • Operating temperature: Ideal for rugged & harsh environments. Much better than SLA or other lithium’s. -20°F min, +120°F max optimal operating temps (battery performs well down to -20°F). Avoid charging below 32°F.
  • Discharge: 10A continuous, 20A max. Note: For small trolling motors, we recommend using our 12v 54Ah battery to maximize your time on the water
  • Charge: 10A max, 14.4V recommended, 15V max. Please note: this battery should be charged using a LiFePO4 compatible charger. A SLA charger may work, but will reduce performance and lifespan of the battery.
  • Includes active BMS protection: Contains a circuit that handles cell balancing, low voltage cutoff, high voltage cutoff, short circuit protection and high temperature protection for increased performance and longer life.
  • Series or Parallel: BMS can support wiring these batteries in series or parallel for up to 4 units (up to 48V series or to 12V 80Ah parallel)
  • Certifications: All batteries are UN38 certified. Dakota Lithium's cells are UL1642 certified and have been tested per IEC62133 standards. Meets all US & International regulations for air, ground, and train transport.
  • ISO 9001:2015: Dakota Lithium is ISO Certified per 9001:2015 standards, and select models are produced in ISO 14001 certified facilities.
  • Charger Sold Separately: This battery should be charged using a LiFePO4 compatible charger. Dakota Lithium 12V batteries should be charged at 14.4 volts. Lead acid chargers will work, but will only charge the battery to 80% of capacity.
  • 11 Year Warranty

  • Out-of-Stock

Payment methods
Go to 12V 3A LiFePO4 Battery Charger 12V 3A LiFePO4 Battery Charger

Include 12V 3A LiFePO4 Battery Charger (+$30.00)

Go to 12V 46Ah Deep Cycle U1 LiFePO4 Battery 12V 46Ah Deep Cycle U1 LiFePO4 Battery

Include 12V 46Ah Deep Cycle U1 LiFePO4 Battery (+$305.00)

Go to DL+ 12v 15Ah Dual Purpose 300cca LIFEPO4 Battery DL+ 12v 15Ah Dual Purpose 300cca LIFEPO4 Battery

Include DL+ 12v 15Ah Dual Purpose 300cca LIFEPO4 Battery (+$155.00)

Additional information

Shipping
  • Shipping policy

    At Dakota Lithium, our goal is to provide transparent and reliable shipping information for our customers. Orders are processed within 24-48 hours upon receipt, excluding weekends and holidays. Orders placed after 5 pm will be processed the next business day. Batteries ship FedEx and will arrive in 5-7 days to most of the US. For shipping quotes to countries outside the United States and Canada, please contact us at sales@dakotalithium.com.

  • Shipping Costs

    Shipping costs for Dakota Lithium batteries are calculated per battery due to their classification as hazardous materials (hazmat), ensuring safe and compliant handling and transportation. Shipping costs to Alaska and Hawaii may be higher due to federal law that requires that batteries ship Air Freight and have Hazmat protection. If you need to return a battery, a 10% restocking fee will apply. For details on our return policy, refunds, order edits, and exchanges, please visit our returns page. In case of lost or damaged orders, contact our support team for assistance. Orders may take longer to arrive due to variables outside of our control. We will communicate any potential delays and provide timeline estimates to keep you informed. After placing an order, you will receive a shipment confirmation email with tracking information. For any issues with lost packages, please contact support@dakotalithium.com for assistance. We appreciate your understanding and thank you for choosing Dakota Lithium.

FAQ
  • Twice the Power?

    Yes! Here at Dakota Lithium we build all of our batteries with lithium iron phosphate technology which has many distinct advantages over traditional batteries. Including 60% less weight, a charging speed that is up to 5X faster, and a significantly longer lifespan (5-10 years longer on average). One of the most noticeable advantages however is the flat voltage curve. Unlike a lead acid battery where the voltage drops as you use the battery a Dakota Lithium battery has a steady voltage for 99% of the battery’s charge. That means you get all the power down to the last drop and double the usable power of traditional batteries.

  • Are Lithium Batteries Safe?

    Dakota Lithium batteries are 100% safe & reliable. Our signature chemistry, Lithium Iron Phosphate (LiFePO4), does not contain rare earth elements (like Cobalt) or heavy metals, is non-toxic, including no lead or acid, is non-corrosive, does not off gas, requires no watering or maintenance, can be placed in any orientation, and unlike other lithium batteries will not explode or catch fire. In addition, each Dakota Lithium battery is protected from over heating, over charging, and short circuiting, by a battery management system (BMS) microchip that also extends the lifespan and is contained in a rugged, waterproof case (although enough water can conduct electricity between the terminals, so don’t submerse the battery). For best performance & reliability we recommend using a LiFePO4 charger.    

  • How do I charge a lithium battery?

    Dakota Lithium LiFePO4 batteries perform best when charged by a LiFePO4-compatible battery charger. LiFePO4 batteries require a different charging profile and voltage requirements compared to traditional battery chargers. Chargers designed for different chemistries may work, but they may not charge a Dakota Lithium battery to full capacity. It’s important to select a charger that has a LiFePO4-compatible constant-current constant-voltage (CC/CV) charging profile, provides the correct charging voltage for your battery, does not exceed the charge current (amp) for the battery, and has a charge indicator LED to let you know when the battery is fully charged. You can find more information on How to Charge Dakota Lithium and LiFePO4 batteries on our website. If you need help finding a compatible charger for your Dakota Lithium battery, or if you want to check your current charger compatibility, please reach out to our support team.

  • Will cold weather affect my battery?

    Your Dakota Lithium battery will discharge normally between a range of -20F and 120F (-29C to 49C). DL batteries are commonly used among ice fishers for their flashers and ice augers, so they are quite resilient and are frequently used in cold climates. In cases of extreme cold however, it is recommended that the batteries be insulated. We also do not recommend charging our batteries below freezing temperatures. If you are planning to regularly charge your battery below freezing temperatures we recommend the DL+ 12V 135Ah battery which has an internal heating element and is optimal for use in cars, trucks, RVs, off grid solar, and any application where the battery will be charged regularly in extremely cold environments (like a North Dakota winter).

  • Do You Have a Military Discount?

    Yes! Dakota Lithium support active and former members of the US or Canadian armed forces. You can use the code DakotaMilitary to get a 5% discount at checkout. If you provide verification through email, you will receive an additional 5% off, making the total discount 10%. Please indicate the branch of the military or unit where you served in the order notes. Many veterans and pilots, including one of our founders who flew F-16s, work for Dakota Lithium. We’d love to hear your story! (P.S. The discount code operates on the honor system, so please only use it if you are a veteran). If you represent a veterans’ organization interested in partnering with Dakota Lithium, you can arrange a group purchase at wholesale prices by contacting sales@dakotalithium.com. For donations, please complete the philanthropy application form available here.

  • How can I become a dealer?

    1) For wholesale & bulk orders simply buy in bulk on the website. Bulk pricing is available on the product page (see bulk pricing discount) or on the Wholesale / Custom page. 2) To become a dealer fill out the form at the bottom of our dealer page. Or contact sales@dakotalithium.com

  • Can I use this to start my car/boat engine?

    We have two battery options available for starting motors: the LTO Automotive Cranking battery and the DL+ Dual Purpose line. Both are designed for starting motors, with a 1000CCA equivalent of engine starting power for boat, car, or truck engines. The DL+ line also offers our legendary deep cycle capability in addition to engine starting power. Please note that our standard deep cycle packs do not have cranking ability and cannot be used for starting motors.

  • What Trolling Motor Battery Do You Recommend?

    Dakota Lithium is a proud sponsor of over 200+ professional athletes in the fishing industry. Here’s batteries sizes recommended by our pros depending on the size of your trolling motor: Motor Thrust / Max Amp Draw (A) @ Voltage (V) / Recommended Battery 20 lbs / 20A @ 12V / DL 54 or DL+ 60 25 lbs / 25A @ 12V / DL 54 or DL+ 60 30 lb / 30A @ 12V / DL 54 or DL+ 60 or DL 100 45 lb / 42A @ 12V / DL 54 or DL+ 60 or DL 100 55 lb / 50A @ 12V / DL 54 or DL+ 60 or DL 100 70 lb / 42A @ 24V / 24V Single or DL 54 x 2 or DL+ 60 x 2 or  DL 100 x 2 80 lb / 56A @ 24V / DL+ 60 x 2 or DL 100 x 2 or DL+ 320 x 2 101 lb / 46A @ 36V / 36V Single or DL+ 60 x 3  DL 100 x 3 or DL+ 320 x 3 112 lb / 52A @ 36V / 36V Single or DL+ 60 x 3 or DL 100 x 3 or DL+ 320 x 3 >112 lb / Up to 100A @ 36V / DL+ 60 x 3 or DL 100 x 3 or DL+ 320 x 3 For wiring multiple batteries in series we recommend Connect Ease trolling motor connection kits available on our trolling motor battery page. For a deep dive on trolling motor batteries read How to Choose A Lithium Battery for Trolling Motors

  • What battery do I need for my RV or Camper Van?

    The industry standard house battery size used in most RVs, Campers, and #VanLife builds is the DL 100Ah battery. This is a drop in replacement for AGM and most lead acid batteries. If you are charging off your engine’s alternator we recommend a Victron DC-DC smart charger. If charging off solar panels we recommend a Victron Smart Solar charge controller, or if you have a solar charge controller choose the lithium setting. A handy size chart for number of batteries needed by size of RV is available here.

Warranty
  • Dakota Lithium Warranties

    We stand behind the quality of our products: 1) 30 day money back guarantee on all orders. If you are unsatisfied for any reason with one of our batteries you can return it for a refund up to 30 days after purchase. 2) 11 year manufacturer defect warranty on all batteries. If we made a mistake building your battery we will repair or replace it. See warranty & return policy for details. 3) Lifetime technical support. Reach out to support@dakotalithium.com for help from our team of experts. 4) 1 year warranty on chargers, powerbox case, and accessories.

  • 30 Day Money Back Guarantee

    If you are unsatisfied for any reason with one of our batteries you can return it for a refund, less a 5% restocking fee, up to 30 days after shipping date.

2024/2025 Dakota Lithium Catalog

Arthur

Powering a Perfect Limit Jerk string for duck hunting and it’s amazing

chris koth

Long lasting in the Garmin love the USB and volt meter

Brody

Perfect size and the built in device charging is awesome!

Jim C.

Great battery. Perfect size and weight for running the auxiliary system on my fishing kayak.

Andrew

fantastic

Guy G.

I bought the 12v 20ah battery to power my Garmin Echomap 74sv chart plotter. Only been able to use it a couple times but so far so good. Doesn't seem to be much drain on the battery. I got the recommended charger as well and all seems to be working as intended. Will put it all to the test this fall.

Brian Trubee

Powering jumpmaster strobe devices for USAF

GARRY B.

I'm a Amateur radio operator and have 2 of the 12v 10aH batteries. Wanted something a little more aH for a go-box I've just finished. this was the PERFECT battery, right size, right aH I really like it! It does the job REALLY well!
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